Portable air purifier



FIG. 1 is a front perspective view of a portable air purifier showingthe new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right elevation view thereof; and,

FIG. 7 is a left elevation view thereof.

CLAIM The ornamental design for a portable air purifier, as shown anddescribed.